Faced with a harsh rebuke from their leader, the tribes of Gad and Reuben do not retreat. Instead, they step forward with a practical proposal to resolve the brewing crisis. They physically close the distance between themselves and Moses. They may have initially stepped back in fear of his anger, but upon realizing that the solution rests in their own hands, they gather their courage and approach him once again [אור החיים]. They also choose to appeal directly to Moses, recognizing him as a faithful and merciful shepherd who will understand their situation and have compassion on the needs of their flocks [אלשיך].
In their appeal, the tribes admit the justice of Moses' words. They withdraw their original request to stay behind the Jordan River and promise to join the battle [מלבי״ם]. However, they require time to prepare. They ask to construct sheepfolds, which are fenced enclosures made of branches and thin wood [אוהב גר, נתינה לגר, ביאור שטיינזלץ], as well as fortified cities [ביאור שטיינזלץ]. This construction serves a dual purpose. Practically, they must protect their families from the local inhabitants while the men leave for the front lines [רלב״ג, מלבי״ם]. Legally, building these structures acts as a formal establishment of property rights, securing their ownership of the land even before they fulfill the condition of going to war [אור החיים].
The primary approach among commentators points to a deep moral flaw in the way they present their plan. By asking to build enclosures for their livestock first, and only afterward mentioning cities for their women and small children [ביאור שטיינזלץ], they reveal that they value their wealth more than their own families, turning what should be secondary into their primary concern [רש״י, אבן עזרא, שפתי חכמים, העמק דבר]. This excessive love for property blinds them to the spiritual danger of living far from the center of the nation, and as a result, they eventually become the first tribes to be exiled from their land [רש״ר הירש].
Other perspectives defend the order of their request. Some explain that the flocks are mentioned first simply because they are the main motivation for the entire appeal [שד״ל]. Others suggest a more tactical reason: if the tribes had opened by asking to protect their children, the rest of the nation might have suspected them of using their families as a cowardly excuse to avoid the dangers of war. By emphasizing their economic needs, they avoid this suspicion [אלשיך]. Ultimately, Moses corrects their priorities. He demands that they fight a commanded war before God, rather than merely fighting for the sake of their brothers [שפתי כהן]. Furthermore, he instructs them to prioritize building cities for their children before constructing enclosures for their sheep. The tribes internalize this moral correction, applying the proper order of priorities in their final response [ברכת אשר על התורה].